CN103147470B - Castinplace pile static loading test pile head and construction method thereof - Google Patents
Castinplace pile static loading test pile head and construction method thereof Download PDFInfo
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- CN103147470B CN103147470B CN201310105949.3A CN201310105949A CN103147470B CN 103147470 B CN103147470 B CN 103147470B CN 201310105949 A CN201310105949 A CN 201310105949A CN 103147470 B CN103147470 B CN 103147470B
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Abstract
The invention discloses a kind of castinplace pile static loading test pile head and construction method thereof, described construction method comprises the following steps: the test pile crown clearing up described castinplace pile; Steel plate is gone along with sb. to guard him in the top sheathed of described test pile crown; Boil sulphide mastic in described test pile crown job site, and go along with sb. to guard him in steel plate described in described sulphide mastic perfusion extremely; After described sulphide mastic coagulation forming, complete construction.Castinplace pile static loading test pile head of the present invention is by sheathedly going along with sb. to guard him steel plate at the top of test pile crown, steel plate pours into sulphide mastic replace conventional static loading test pile head process in going along with sb. to guard him again, after sulphide mastic is filled with, unit for single-pile vertical anti-pulling loading test can be carried out after 1 hour, greatly accelerate detection time, solve conventional static loading test pile head long processing period, affect the problem of programming.
Description
Technical field
The present invention relates to a kind of static loading test pile head construction method, particularly relate to a kind of castinplace pile static loading test pile head and construction method thereof.
Background technology
Pile foundation needs to carry out consolidation process to the pile crown of test pile before static loading test, conventional construction method be former pile crown laitance and earth etc. are cleaned out and hacking to complete horizontal section, adopt the concrete of high grade by former pile body spreading, after the concrete strength of new spreading pile body reaches 100% of former design strength grade, unit for single-pile vertical anti-pulling bearing capacity can be carried out.The construction method cycle of conventional static loading test pile head process reaches more than 15 days, by the progress of the whole engineering of impact.Therefore static loading test pile head process is necessary to propose a kind of simple and easy quick and don't affect the construction method of unit for single-pile vertical anti-pulling bearing capacity experimental result.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of simple and easy quick and don't affect castinplace pile static loading test pile head and the construction method thereof of unit for single-pile vertical anti-pulling bearing capacity experimental result.
For realizing above-mentioned technique effect, the invention discloses a kind of castinplace pile static loading test pile head construction method, described construction method comprises the following steps:
Clear up the test pile crown of described castinplace pile;
Steel plate is gone along with sb. to guard him in the top sheathed of described test pile crown;
Boil sulphide mastic in described test pile crown job site, and go along with sb. to guard him in steel plate described in described sulphide mastic perfusion extremely;
After described sulphide mastic coagulation forming, complete construction.
Described construction method is further improved and is, described in go along with sb. to guard him steel plate and comprise a doughnut-shaped steel plate, be provided with one deck two-way concrete slab mesh sheet in described doughnut-shaped steel plate, described in go along with sb. to guard him the diameter of diameter slightly larger than described castinplace pile pile body of steel plate.
Described construction method is further improved and is, the construction method that boils of described sulphide mastic comprises the following steps:
The simple eye dish stove of casting one is built in described test pile crown job site;
Yellow sand is placed in fried dry in the iron pan on described simple eye dish stove;
Adding cement dry mixing fries to 130 ~ 150 DEG C again;
Adding sulphur burns molten with temperature;
After being constantly stirred to fusing completely, adding tough dose of polysulfide rubber and continue to stir, make to be warming up to 160 DEG C;
Can pour into after continuing a few minutes.
Described construction method is further improved and is, described sulphide mastic filling temperature remains on 140 ~ 150 DEG C.
The invention also discloses a kind of castinplace pile static loading test pile head, the top of described test pile crown is arranged with one and goes along with sb. to guard him steel plate, described steel plate of going along with sb. to guard him comprises a doughnut-shaped steel plate, opens and is provided with one deck two-way concrete slab mesh sheet, be perfused with sulphide mastic in described doughnut-shaped steel plate in described doughnut-shaped steel plate.
Described test pile crown further improves and is, the thickness of described doughnut-shaped steel plate is 5mm, is highly 250mm, and the diameter of described doughnut-shaped steel plate is slightly larger than the diameter of described castinplace pile pile body, and described doughnut-shaped steel plate is placed on ground.
Described test pile crown further improves and is, described two-way concrete slab mesh sheet employing Ф 12mm spacing is that the reinforcing bar of 150mm is made.
Described test pile crown further improves and is, the length that described doughnut-shaped steel plate is inserted in described castinplace pile part is 100mm.
Described test pile crown further improves and is, the composition of described sulphide mastic includes yellow sand, cement, sulphur and polysulfide rubber.
The present invention is owing to have employed above technical scheme, making it have following beneficial effect is: by sheathedly going along with sb. to guard him steel plate at the top of test pile crown, steel plate pours into sulphide mastic replace conventional static loading test pile head process in going along with sb. to guard him again, after sulphide mastic is filled with, unit for single-pile vertical anti-pulling loading test can be carried out after 1 hour, greatly accelerate detection time, solve conventional static loading test pile head long processing period, affect the problem of programming.
Accompanying drawing explanation
Fig. 1 is the structural representation of castinplace pile static loading test pile head of the present invention.
Fig. 2 is the structural representation of going along with sb. to guard him steel plate of castinplace pile static loading test pile head of the present invention.
Fig. 3 is the plane structure schematic diagram of going along with sb. to guard him steel plate of castinplace pile static loading test pile head of the present invention.
Fig. 4 is castinplace pile static loading test pile head construction method of the present invention state diagram.
Fig. 5 is castinplace pile static loading test pile head construction method of the present invention state diagram.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
First consult shown in Fig. 1 and Fig. 2, castinplace pile static loading test pile head 1 of the present invention is by going along with sb. to guard him steel plate 11 at the top sheathed of test pile crown 1, steel plate 11 pours into sulphide mastic 12 replace conventional static loading test pile head consolidation process in going along with sb. to guard him again, it is closely knit that sulphide mastic 12 has structure, sclerosis is fast, high (sulphide mastic compressive strength >=the 40MPa of intensity, be greater than former concrete strength of pile), the features such as easy construction, sulphide mastic is less than in the time of one day, just can reach the compressive strength of 100%, and generally the compressive strength of ordinary concrete reaches 100% needs more than 28 days, after the concrete strength of new spreading static loading test pile head needs to reach 100% of the former design strength grade of pile body, single pile vertical resistance pressure bearing capacity can be carried out, therefore sulphide mastic pile crown is used to save a lot of time than concrete pile head.Wherein, coordinate shown in Fig. 2 and Fig. 3, go along with sb. to guard him steel plate 11 and comprise a doughnut-shaped steel plate 13, the thickness of doughnut-shaped steel plate 13 is 5mm, is highly 250mm, and diameter is slightly larger than the pile body diameter of castinplace pile 10, and the length that doughnut-shaped steel plate 13 is inserted in castinplace pile 10 part is 100mm.The middle and upper part of doughnut-shaped steel plate 13 is opened and is provided with one deck two-way concrete slab mesh sheet 14, and two-way concrete slab mesh sheet 14 adopts Ф 12mm spacing to be that the reinforcing bar of 150mm is made.Sulphide mastic 12 is poured in doughnut-shaped steel plate, and the perfusion face of upper end is horizontal plane, and the composition of sulphide mastic 12 includes yellow sand, cement, sulphur and polysulfide rubber.Wherein, because the bearing capacity of static loading test reaches more than 1000t, in order to avoid in static loading experiment process, sulphide mastic pile crown splits broken phenomenon, thus affect single pile vertical resistance pressure bearing capacity experimental result, therefore go along with sb. to guard him steel plate 11 in the employing of sulphide mastic pile crown periphery to wrap, and one deck two-way concrete slab mesh sheet 14 is set, increases the entire compression intensity of sulphide mastic pile crown.
The construction of castinplace pile static loading test pile head 1 of the present invention is as follows:
First, consult shown in Fig. 2, clear up former castinplace pile 10 pile crown laitance and earth, former castinplace pile 10 pile crown laitance and earth etc. are cleaned out and hacking to complete horizontal section, and expose fresh concrete.
Then, make and go along with sb. to guard him steel plate 11, going along with sb. to guard him steel plate 11 thick is 5mm, and diameter, slightly larger than former castinplace pile pile body diameter, is highly 250mm, and upper weld one deck Ф 12 spacing is the two-way concrete slab mesh sheet 14 of 150mm, as shown in Figures 2 and 3.
Then, coordinate shown in Fig. 2, be placed on the pile crown of former castinplace pile by the shaping steel plate 11 of going along with sb. to guard him of making, going along with sb. to guard him the length that steel plate 11 is inserted in castinplace pile is 100mm.
Then, boil sulphide mastic 12, with a brick simple simple eye dish stove near test pile crown 1, first yellow sand is placed on fried dry in iron pan, then add cement dry mixing to fry again, to (Mao Baiyan) when 130 ~ 150 DEG C, add sulphur and burn with temperature molten, constantly stir simultaneously, completely after fusing, then add tough dose of polysulfide rubber continuation stirring, after being warming up to 160 DEG C, lasting a few minutes can pour into, sulphide mastic filling temperature remains on 140 ~ 150 DEG C, and perfusion is to going along with sb. to guard him steel plate 11 top, and the perfusion face at top is horizontal plane, complete construction, as shown in Figure 1.
Below embodiment is to invention has been detailed description by reference to the accompanying drawings, and those skilled in the art can make many variations example to the present invention according to the above description.Thus, some details in embodiment should not form limitation of the invention, the present invention by the scope that defines using appended claims as protection scope of the present invention.
Claims (6)
1. a castinplace pile static loading test pile head construction method, is characterized in that described construction method comprises the following steps:
Clear up the test pile crown of described castinplace pile;
Go along with sb. to guard him steel plate in the top sheathed of described test pile crown, described in go along with sb. to guard him steel plate and comprise a doughnut-shaped steel plate, be provided with one deck two-way concrete slab mesh sheet in described doughnut-shaped steel plate, described in go along with sb. to guard him the diameter of diameter slightly larger than described castinplace pile pile body of steel plate;
Boil sulphide mastic in described test pile crown job site, and go along with sb. to guard him in steel plate described in described sulphide mastic perfusion extremely;
The construction method that boils of described sulphide mastic comprises the following steps:
The simple eye dish stove of casting one is built in described test pile crown job site;
Yellow sand is placed in fried dry in the iron pan on described simple eye dish stove;
Adding cement dry mixing fries to 130 ~ 150 DEG C again;
Adding sulphur burns molten with temperature;
After being constantly stirred to fusing completely, adding tough dose of polysulfide rubber and continue to stir, make to be warming up to 160 DEG C;
Can pour into after continuing a few minutes;
After described sulphide mastic coagulation forming, complete construction.
2. construction method as claimed in claim 1, is characterized in that: described sulphide mastic filling temperature remains on 140 ~ 150 DEG C.
3. a castinplace pile static loading test pile head, it is characterized in that: the top of described test pile crown is arranged with one and goes along with sb. to guard him steel plate, described steel plate of going along with sb. to guard him comprises a doughnut-shaped steel plate, open in described doughnut-shaped steel plate and be provided with one deck two-way concrete slab mesh sheet, be perfused with sulphide mastic in described doughnut-shaped steel plate, the composition of described sulphide mastic includes yellow sand, cement, sulphur and polysulfide rubber.
4. test pile crown as claimed in claim 3, it is characterized in that: the thickness of described doughnut-shaped steel plate is 5mm, is highly 250mm, the diameter of described doughnut-shaped steel plate is slightly larger than the diameter of described castinplace pile pile body, and described doughnut-shaped steel plate is placed on ground.
5. test pile crown as claimed in claim 4, it is characterized in that: the length that described doughnut-shaped steel plate is inserted in described castinplace pile part is 100mm.
6. test pile crown as claimed in claim 4, it is characterized in that: described two-way concrete slab mesh sheet employing Ф 12mm spacing is that the reinforcing bar of 150mm is made.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310105949.3A CN103147470B (en) | 2013-03-28 | 2013-03-28 | Castinplace pile static loading test pile head and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310105949.3A CN103147470B (en) | 2013-03-28 | 2013-03-28 | Castinplace pile static loading test pile head and construction method thereof |
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| CN103147470A CN103147470A (en) | 2013-06-12 |
| CN103147470B true CN103147470B (en) | 2016-03-30 |
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| CN201310105949.3A Active CN103147470B (en) | 2013-03-28 | 2013-03-28 | Castinplace pile static loading test pile head and construction method thereof |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107044141A (en) * | 2017-05-18 | 2017-08-15 | 郑州大学 | A kind of method for rapidly reinforcing of foundation pile stake top |
| CN109138009A (en) * | 2018-09-30 | 2019-01-04 | 上海宝冶集团有限公司 | A kind of CFG of detecting of bearing capacity of a pile method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101748759A (en) * | 2009-12-16 | 2010-06-23 | 江苏建华管桩有限公司 | Method for strengthening and repairing tubular pile head |
| CN202073129U (en) * | 2011-05-11 | 2011-12-14 | 浙江大学城市学院 | Vertical static loading test pile head hoop device for special-shaped pile equipped with pointed anti-arching curved surface |
| CN202099819U (en) * | 2011-05-17 | 2012-01-04 | 浙江大学城市学院 | Treatment device of vertical static load test pile head |
| CN202787244U (en) * | 2012-07-29 | 2013-03-13 | 山西四建集团有限公司 | One-step molded test pile head for cast-in-place pile |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4643364B2 (en) * | 2005-06-02 | 2011-03-02 | 株式会社フジタ | Pile head reinforcement method |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101748759A (en) * | 2009-12-16 | 2010-06-23 | 江苏建华管桩有限公司 | Method for strengthening and repairing tubular pile head |
| CN202073129U (en) * | 2011-05-11 | 2011-12-14 | 浙江大学城市学院 | Vertical static loading test pile head hoop device for special-shaped pile equipped with pointed anti-arching curved surface |
| CN202099819U (en) * | 2011-05-17 | 2012-01-04 | 浙江大学城市学院 | Treatment device of vertical static load test pile head |
| CN202787244U (en) * | 2012-07-29 | 2013-03-13 | 山西四建集团有限公司 | One-step molded test pile head for cast-in-place pile |
Non-Patent Citations (1)
| Title |
|---|
| 硫磺胶泥接桩新工艺;彭曼如;《工程勘察》;19830430(第2期);第81页 * |
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